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Responsive Design Testing Tools
For A Scalable, Reactive, and Beautiful Web.

Test your websites reponsiveness on over 1500 different browsers and mobile devices.
Make sure your website looks great on every screen size.

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Enjoyed by all, both big & small.
Countless Configurations

Build & Test For Responsiveness on Real Browsers & Mobile Devices.

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We have integrated CodePen with CrossBrowserTesting where our users can test the things they build. We know for a fact that people love it!

Chris Coyier, founder of CodePen

Frequently Asked Questions

What Makes Our Screenshots So Powerful?

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  • Full Page, Windowed, Chromeless...

    You choose what type of screenshot you want: full-page renderings, just above-the-fold, or chromeless (without all the navigation and settings).

  • Easy Local Testing

    With the ease of our Chrome Extension, take screenshots on local files, behind a firewall, or across a proxy server for Geo-local screenshots.

  • Powerful API & Integrations

    With our extensible REST API you can take Automated Screenshots and compare them through scripting or a CI server like Jenkins or TeamCity.

  • Wide Test Automation Support

    You can run your Selenium and Appium tests in conjunction with our screenshot system, getting the browser in the perfect position for high-def snapshots.

The All-In-One Browser Testing Platform

One solution for all the testing needs of the modern Developer, Tester, and Designer.

  • Test Manually

    Interactively use, test, and debug your app on remote browsers and devices, with access to native settings, inspection tools, and more.

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  • Take Screenshots

    Capture full-page screenshots of your website across different browsers and devices at one time, then share with stakeholders.

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  • Visually Compare

    Our comparison engine compares your webpages side by side across different browsers at one time, or over a historical timeline.

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  • Automate It All

    Run Selenium, Appium, and other open source testing frameworks against our collection of real devices and browser, right in the cloud.

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